By Anthony Boadle and Brendan O’Boyle BRASILIA (Reuters) -Indigenous groups, environmentalists, fellow reporters and family and friends paid tribute on Thursday to British journalist Dom Phillips and Brazilian isolated tribes expert Bruno Pereira who disappeared in the Amazon 11 days ago and are presumed dead. Police said on Wednesday night that they had recovered human remains from a grave in the jungle where they were led by a fisherman who confessed to killing the two men. The remains are still being identified. The man had threatened Pereira for documenting illegal fishing in the remote Ja…